On Sun, 21 Sep 2003, Tracey Estevez wrote:

> I have installed my Jensen 600W amp in my 85 Westy and am having problems
> with whining noise during engine acceleration and a loud "POP" from the
> speakers when changing radio stations. I have tried installing both a
> ground-loop isolator (to the RCA plugs) and an inline noise filter ( on the
> 12V + wire) independent of each other. the GLI kills the amp's power but
> eliminates the acceleration whining. The inline noise filter makes the
> whining worse. Both cause a loud "POP" when I change stations. Anybody have
> any suggestions??

If the GLI fixed the alternator whine then you clearly have a ground-loop
issue.  What do you mean by "it kills the amp's power"?  If you can get
the ground wire for the amp and the ground wire for the radio to go to the
same location, you may be able to eliminate the need for the GLI.

David Brodbeck, N8SRE
'82 Diesel Westfalia
'94 Honda Civic Si